NASA Defaces Mars With Massive Cock Drawing

Apparently this was an accident, but really? Someone's obviously got a sense of humour at NASA's rover control (or access to Photoshop?). Poor Opportunity, just going about its own business while some pecker takes advantage of its innocent wanderings. It's bad enough it got replaced by Curiosity and left on Mars to die, but this? Maybe it's just Opportunity getting its own back. [NASA via Reddit via HuffPo]